Who owns MAC prefix 884B39?

884B39 is registered to Siemens AG, Healthcare Sector in the IEEE MA-L registry.

What devices use 884B39?

Any network device with a MAC address starting 88:4B:39 was manufactured by or for Siemens AG, Healthcare Sector.

MA-L · OUI prefix

Siemens AG, Healthcare Sector

Any MAC address starting 88:4B:39 is registered to Siemens AG, Healthcare Sector in DE.

OUI prefix	884B39
Vendor	Siemens AG, Healthcare Sector
Registry	MA-L (24-bit, large block)
Country	DE
Example MAC	88:4B:39:00:00:00

What this means

The IEEE assigned the MA-L block 884B39 to Siemens AG, Healthcare Sector. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting 88:4B:39, it is Siemens AG, Healthcare Sector hardware.

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